In addition to teaching literacy, Yan Zheng also has a subject that is mathematics, which is easier than literacy, and he also teaches according to literacy textbooks.

In the beginning, only decimal and addition, subtraction, multiplication, and division were taught, and there was some basic geometry knowledge. This knowledge is not very advanced, but it is very practical in daily life.

And one of the main points of mathematics education is to let them understand weights and measures, and learn to use quantitative relations to deepen the precise expression of things.

This is very important, and only when this is done can we develop basic accounting talents.

Only with the accounting system and accounting talents can we use numbers to control the operation of society and the country, which is very important for a country.

Take the Ming Dynasty and the Qing Dynasty as examples, these two dynasties did not establish a complete accounting system, not even a modern accounting system.

Therefore, the Ming and Qing dynasties were very rough in their governance, and they did not know anything about the situation in the provinces except for paying taxes. There have even been cases where the number of registered population has not increased or decreased for many years.

And the money in the treasury is getting smaller and smaller, and I don't know where the problem is.

There is no exact verifiable basis for a sum of money from top to bottom.

However, in the face of this situation, the scholars and doctors often only said that His Majesty should be diligent in government and should rectify the rule of officials. When the taxes are low and the treasury is empty, Your Majesty should be sensitive to the feelings of the people, be diligent and thrifty, and practice some kind of benevolent government.

It can be said that there is very few groups of people who can govern the country like the Confucian scholars in China, who treat the Confucian classics as religious teachings, and have monopolized the right to interpret the truth for more than a thousand years.

Their idealistic ideas and values, as well as the hierarchical concept and official-based thinking, have poisoned them for thousands of years.

Therefore, Yan Zheng plans to popularize education, and another purpose is to find another way for Chinese civilization, because he knows that the road of Daming is no longer possible!

If you go on, it will always be an endless involution!

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"All the units of weights and measures must be memorized for me, and how to convert them, you must remember them for me!

I'll write a table out of animal skins later, and I'll put it in the corner over there, and you'll go and see it every day!" After finishing a class, Yan Zheng cleaned up and ended today's schoolwork.

The students below all frowned and watched, and the ground was painted with various symbols.

The lack of paper made teaching extremely inconvenient, and in order to facilitate their writing, Yan Zheng could only get some sand and lay a small area for each person to write.

"Chief, why is the conversion of square meters and cubic meters different?" A teenager raised his hand and asked.

Yan Zheng came to him and said, "You didn't listen to the lecture just now, did you?" The square meter is the flat area, and the cubic meter is the volume! Think about it for yourself, the volume is the length, width and height, and the area is the length and width. ”

The boy took the bamboo pen and thought about it, but still didn't seem to understand.

Yan Zheng had to take the brick he had just used to teach and said: "Look at this brick, the length, width and height are multiplied to get the volume, so when we convert the volume, we can't calculate it according to the square meter of the area, which is why the cubic meter is m³ and the square meter is the square meter!" ”

The young man held the brick and looked at it, and after a while, he suddenly realized, "I understand! The area is flat, and the cubic meter is the sum of the area of this length! ”

Yan Zheng smiled and said, "Very smart! ”

The young man grinned and continued to ponder the brick, and the people around him also came forward to ask.

Yan Zheng liked this atmosphere very much, and when he was about to leave, Wang Qimei stood at the door of the shed and stopped him.

It turned out that she had forgotten the writing and spelling of a few words, and Yan Zheng had to patiently guide her, so as not to be a little angry again.

To be honest, Wang Qimei's brain is an elm pimple, Li Yadu learns much faster than her, and even Wang Jiang's is far clearer than her.

After teaching her another quarter of an hour, she understood it thoroughly, and after bowing respectfully, she began to read to herself as she went.

This made Yan Zheng quite helpless, among these students, the smartest one was Lan Ya, who might be able to open a small stove every day, plus spend more days with him.

As the saying goes, if you want to learn, sleep with the master first. Therefore, whether it is literacy or mathematics, Lan Ya learns more easily than others.

The second is those with good talents, such as Anshan, who can basically understand after listening to the class, and after reviewing it a few times, they can almost remember it.

There are also some students, like the boy just now, who have shown a certain talent for thinking and asking some questions.

It seems that both people from primitive societies and people from the civilized world behave similarly to new learning.

After leaving the teaching shed, Yan Zheng went around and came to a newly built workshop.

A few shirtless men inside were stirring a large vat vigorously, and after the contents of the vat were even, they put a wooden mold into the vat, and then slowly picked it up.

This workshop is a papermaking workshop, and the technology used is soil method straw pulp papermaking.

The raw materials are tender bamboo and straw, and due to the lack of acid-base engineering, only low-grade cultural paper can be made.

The process includes whole material, falling into the lake, impregnation, lake rising, crushing, bleaching, caustic boiling, steaming, discharging, washing, fermentation, and papermaking.

To make paper, the tribe dug a lake pond and a drifting pond, and also built a wooden earth press.

It can be said that a lot of manpower and material resources have been mobilized, and this area near the river has to be affected by sewage and can no longer become fertile land.

Yan Zheng looked at the paper that had been made, pinched it, picked up the bamboo pen and wrote it again, and after only writing some of it, he stopped: "This paper is not good!" Stop first! ”

This paper is really not good! It's rougher than the paper money burned in the grave.

After looking at a few more batches, I found that some of the papers were relatively better!

"There must still be substandard operations in your hands, and there is a lack of the process ahead!" Yan Zheng sighed helplessly, in fact, there is another reason that there is no soda ash, so he can only use lime.

Several of the clansmen in charge of papermaking were also a little overwhelmed, and they stood aside and waited for orders.

Yan Zheng thought for a while and said: "Change the ingredient ratio, if you can't do it, use all the tender bamboo!" ”

Several clansmen looked at him blankly, these days they are all operating step by step, leaving Yan Zheng's guidance, they don't know what to do at all, so they know what ingredient ratio there is.

Yan Zheng looked at them, and a flash of inspiration suddenly flashed in his mind, he hurriedly ran back to the teaching shed and said, "Now I want to select ten of the best students to study papermaking with me!" ”

The students looked at him in confusion at first, and after understanding the intention, they all waited for Yan Zheng to pick him up.

Wang Jiang, as the core figure of the thirteen "hairpins" of the Ming Dynasty, also felt that this was an opportunity, as long as he was picked by the short-haired king, he would definitely get a lot of benefits in the future.

It's just that she threatened the other women and said: "This short hair is not good, saying that it is going to make paper, maybe what is it doing!" ”

After Li Ya heard this, she nodded seriously and said, "What you said is reasonable, and it must be a cover to study papermaking!" ”

After hearing this, the others shrank their necks one after another, only Wang Qimei still looked dumbfounded, without any change in expression, as if she was selected or not.

After picking for a while, Yan Zheng soon came to the side of the Ming Thirteen Hairpins.

As soon as he took two steps to pick someone, Wang Jiang got up, made a protective move, and protected the people behind him and said, "King, let the people go this way!" They are all young and ignorant! ”

Yan Zheng frowned and said, "Are you teaching me to do things?" ”

"Huh?" Wang Jiang was stunned.

Yan Zheng glared at her, looked left and right, pointed at Wang Qimei and said, "It's you!" ”

Wang Qimei's stunned eyes revealed a trace of incredulity, and she forgot to react in a hurry.

By the time she came back to her senses, Yan Zheng had already turned around and left.

And she was able to be selected for no other reason, that is, this girl is down-to-earth and sincere.

Yan Zheng also found out that this stupid girl who looked a little stupid had been really trying to change in her progress day by day.

From not knowing a single big character at the beginning, and not having a clear brain in class, to now being able to learn basic literacy methods, Wang Qimei has spent a lot more effort than others.

Yan Zheng also saw the blood blisters grinding out of her hand holding a bamboo pen, and knew that she had worked hard behind her.

For this kind of hard-working and hard-working person, Yan Zheng felt that she should be given some care, at least to make her life different than when she was in Daming.

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